| 108 / | HD | HORIZONTALLY SUPPORTED PLANAR SURFACES |
| 59 | DF | PLURAL RELATED HORIZONTAL SURFACES {11} |
| 106 | DF | .~ Vertically adjustable {1} |
| 107 | ![]() | .~.~ Removably mountable in plural positions {2} |
| 108 | DF | .~.~.~> Cantilever support {1} |
| 110 | DF | .~.~.~> Interlocked with surface configuration of support |